I was replacing my IAC (Later to find out the part i got was wrong-_- but thats not the point) when i had my ratchet up there it hit something and there was a big spark that lit up the entire area.. i immediately unplugged the battery terminals(Should've done that in the first place.. Whoops.) But, I was wondering if any one knew where this could have came from?? Please, any and all information could be helpful. I just want to see if this is normal because i know water conducts electricity and i figure if whatever sparked got wet it could be bad so please let me know, thank you.